Added server schema validation
Added server schema validation

picoCTF/picoCTF-web,picoCTF/picoCTF-web,cganas/picoCTF-web,alpire/picoCTF-web,cganas/picoCTF-web,cganas/picoCTF-web,alpire/picoCTF-web,alpire/picoCTF-web,cganas/picoCTF-web,alpire/picoCTF-web,picoCTF/picoCTF-web,picoCTF/picoCTF-web